JPH02129807A - Flame retardant electric insulating composition - Google Patents
Flame retardant electric insulating compositionInfo
- Publication number
- JPH02129807A JPH02129807A JP28473188A JP28473188A JPH02129807A JP H02129807 A JPH02129807 A JP H02129807A JP 28473188 A JP28473188 A JP 28473188A JP 28473188 A JP28473188 A JP 28473188A JP H02129807 A JPH02129807 A JP H02129807A
- Authority
- JP
- Japan
- Prior art keywords
- halogen
- flame retardant
- polymer
- insulating composition
- ethylene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 16
- 239000003063 flame retardant Substances 0.000 title claims abstract description 7
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 6
- 229920000642 polymer Polymers 0.000 claims abstract description 12
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 10
- 150000002367 halogens Chemical class 0.000 claims abstract description 10
- 239000004709 Chlorinated polyethylene Substances 0.000 claims abstract description 4
- 238000010292 electrical insulation Methods 0.000 claims description 5
- VKLYZBPBDRELST-UHFFFAOYSA-N ethene;methyl 2-methylprop-2-enoate Chemical compound C=C.COC(=O)C(C)=C VKLYZBPBDRELST-UHFFFAOYSA-N 0.000 claims description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 abstract description 3
- 239000005977 Ethylene Substances 0.000 abstract description 3
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 abstract description 3
- 229920005601 base polymer Polymers 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 1
- 238000004132 cross linking Methods 0.000 description 8
- 229920001971 elastomer Polymers 0.000 description 5
- HQQADJVZYDDRJT-UHFFFAOYSA-N ethene;prop-1-ene Chemical group C=C.CC=C HQQADJVZYDDRJT-UHFFFAOYSA-N 0.000 description 4
- 239000002861 polymer material Substances 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 229920005549 butyl rubber Polymers 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000001451 organic peroxides Chemical class 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- KOMNUTZXSVSERR-UHFFFAOYSA-N 1,3,5-tris(prop-2-enyl)-1,3,5-triazinane-2,4,6-trione Chemical compound C=CCN1C(=O)N(CC=C)C(=O)N(CC=C)C1=O KOMNUTZXSVSERR-UHFFFAOYSA-N 0.000 description 1
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 description 1
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 description 1
- 229910052794 bromium Inorganic materials 0.000 description 1
- 229920005557 bromobutyl Polymers 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000007765 extrusion coating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229920002681 hypalon Polymers 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は電気絶縁組成物、特に難燃性に優れた電気絶縁
組成物に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an electrical insulating composition, particularly an electrical insulating composition with excellent flame retardancy.
［従来の技術］
従来、電線・ケーブル用絶縁材料としてはポリエチレン
、架橋ポリエチレン、エチレン・プロピレンゴム、ブチ
ルゴム、ポリ塩化ビニル等のポリマー材料が使用されて
いる。[Prior Art] Conventionally, polymer materials such as polyethylene, crosslinked polyethylene, ethylene/propylene rubber, butyl rubber, and polyvinyl chloride have been used as insulating materials for electric wires and cables.
ところで、近年、電線・ケーブルが火災を助長したり、
火源となる事例が散見されるようになっている。このた
め、電線・ケーブル用絶縁材料に対し、本来の電気絶縁
性や耐熱性は勿論のこと、難燃性を兼ね備えることが要
求されて来ている。By the way, in recent years, electric wires and cables have been promoting fires,
There have been a number of cases where fires have started. For this reason, insulating materials for electric wires and cables are required not only to have inherent electrical insulation properties and heat resistance, but also to have flame retardancy.
このような要求に応えるため、ポリエチレン、架橋ポリ
エチレン、エチレン・プロピレンゴム、ブチルゴム等の
ハロゲンを含まないポリマー材料に塩素や臭素を含有さ
せた粉状難燃剤を添加するか、或いは前記ポリマー材料
にハロゲン含有ポリマーをブレンドすることにより、そ
れらの絶縁材料に難燃性を付与することが一般に行われ
ている。In order to meet these demands, powdered flame retardants containing chlorine or bromine are added to halogen-free polymer materials such as polyethylene, cross-linked polyethylene, ethylene/propylene rubber, butyl rubber, or halogen-free polymer materials are added to the polymer materials. It is common practice to impart flame retardancy to these insulating materials by blending containing polymers.
［発明が解決しようとする課題］
しかし、粉状の難燃剤を添加する方法は、使用時に難燃
剤が表面に析出する現象（ブルーム）を生じ、製品の品
質を低下させる問題がある。又、ハロゲン含有ポリマー
をブレンドする方法は、極性の差からポリマー同士が十
分に相溶せず、経済的に相分離を生じる結果、機械特性
が著しく低下する問題がある。[Problems to be Solved by the Invention] However, the method of adding a powdered flame retardant has the problem of causing a phenomenon (bloom) in which the flame retardant precipitates on the surface during use, reducing the quality of the product. In addition, the method of blending halogen-containing polymers has the problem that the polymers are not sufficiently compatible with each other due to the difference in polarity, resulting in economical phase separation, resulting in a significant decrease in mechanical properties.
本発明の目的は、前記した従来技術の欠点を解消しなが
ら難燃性を付与できる電気絶縁組成物を提供することに
ある。An object of the present invention is to provide an electrical insulating composition that can impart flame retardancy while eliminating the drawbacks of the prior art described above.
［課題を解決するための手段及び作用］本発明の要旨は
、電気絶縁組成物のベースポリマーとして、エチレン・
メチルメタクリレート（ＥＭＭＡ）とハロゲン含有ポリ
マーのブレンドを用いたことにあり、それによって電気
絶縁性、耐熱性等の本来の特性を損なうことなく難燃性
を付与させたものである。[Means and effects for solving the problem] The gist of the present invention is to use ethylene as a base polymer for an electrical insulation composition.
It uses a blend of methyl methacrylate (EMMA) and a halogen-containing polymer, thereby imparting flame retardancy without impairing its original properties such as electrical insulation and heat resistance.
本発明において、エチレン・メチルメタクリレートとハ
ロゲン含有ポリマーのブレンドは、両者の溶解度パラメ
ーターが類似しているため、非常に良好な相溶性を保持
している。In the present invention, the blend of ethylene methyl methacrylate and halogen-containing polymer retains very good compatibility due to their similar solubility parameters.
エチレン・メチルメタクリレート（ＥＭＭＡ）とハロゲ
ン含有ポリマーのブレンド比を上記のように限定したの
は、ＥＭＭＡｉｔが９０重臆％を越えると十分な難燃性
が得られず、逆に２０重量％未満では耐熱性の点で劣る
からである。The reason why the blend ratio of ethylene methyl methacrylate (EMMA) and halogen-containing polymer was limited as above is that if EMMAit exceeds 90% by weight, sufficient flame retardance cannot be obtained, and conversely, if EMMAit exceeds 90% by weight, it cannot be obtained. This is because it is inferior in terms of heat resistance.
ハロゲン含有ポリマーとしては、塩素化ポリエチレン、
クロロスルホン化ポリエチレン、臭素化ブチルゴム、塩
素化ブチルゴム、ポリクロ１］プレン、ヒドリンゴム、
臭素化エチレン・プロピレンゴム、塩素化エチレン・プ
ロピレンゴム、塩素化天然ゴム等が挙げられる。Examples of halogen-containing polymers include chlorinated polyethylene,
Chlorosulfonated polyethylene, brominated butyl rubber, chlorinated butyl rubber, polychloro1]prene, hydrin rubber,
Examples include brominated ethylene/propylene rubber, chlorinated ethylene/propylene rubber, and chlorinated natural rubber.
本発明の電気絶縁組成物を架橋する方法としては、有機
過酸化物による架橋、電子線照射による架橋、シラング
ラフト水架橋等がある。有機過酸化物による架橋に用い
られる架橋剤としては、ジクミルパーオキサイド、３−
ビス（ｔ−ブチルパーオキシイソプロピル）ベンゼン等
が好適である。Examples of methods for crosslinking the electrically insulating composition of the present invention include crosslinking using organic peroxides, crosslinking using electron beam irradiation, and silane graft water crosslinking. Crosslinking agents used for crosslinking with organic peroxides include dicumyl peroxide, 3-
Bis(t-butylperoxyisopropyl)benzene and the like are preferred.
又、電子線照射による架橋における架橋助剤としては、
トリメチロールプロパントリメリテート、トリアリルイ
ソシアヌレート等の反応性モノマが−・般的である。In addition, as a crosslinking aid for crosslinking by electron beam irradiation,
Reactive monomers such as trimethylolpropane trimellitate and triallyl isocyanurate are common.
尚、本発明では上記ブレンドに加えて、酸化防止剤、滑
剤、難燃助剤、充填剤、カーボンブラック等が添加され
ていてもよい。In the present invention, in addition to the above blend, antioxidants, lubricants, flame retardant aids, fillers, carbon black, etc. may be added.
［実 施 例１
表に示す配合割合に従って各種成分を配合し、約１２０
℃に保持された８インチロールに投入してロール混線を
行った。混線後、１３０℃に保持された４０ｍ／ｍ押出
１ｆｉ（Ｌ／Ｄ＝２５）を用い、外径１．８ｍｍの導体
上に厚さ２ ｍｍになるように押出被覆して絶縁電線を
作製した。その後１２Ｋｇ／ｃｒｊの水蒸気雰囲気中に
３分間保持して架橋を行い、試料とした。各個の評価結
果を表の一ト欄に示す。[Example 1 Various ingredients were blended according to the proportions shown in the table, and approximately 120%
The mixture was placed in an 8-inch roll maintained at ℃ and cross-rolled. After cross-wiring, using a 40 m/m extrusion 1fi (L/D = 25) held at 130°C, an insulated wire was produced by extrusion coating onto a conductor with an outer diameter of 1.8 mm to a thickness of 2 mm. . Thereafter, the sample was maintained in a steam atmosphere of 12 kg/crj for 3 minutes to effect crosslinking. The individual evaluation results are shown in the first column of the table.
尚、評価方法は次の通りである。The evaluation method is as follows.
難燃性：ＪＩＳ’Ｃ３００４に基づき、水平に保った絶
縁電線をバーナで３０秒間燃焼後、１分以内に消えるも
のは合格とし、１分を越えて燃えるものは不合格とした
。Flame retardancy: Based on JIS'C3004, after burning an insulated wire held horizontally in a burner for 30 seconds, those that disappeared within one minute were judged to be passed, and those that burned for more than one minute were judged to be rejected.
耐熱性−電線から導体を引き抜いたデユープ状試料を２
０℃の恒温室に２４時間放置後及び１５０℃の老化試験
機に９６時間保持後、ショツパー型引張試験機を用いて
引張速度５００Ｍ／ｍｉｎで測定し、引張強さ及び伸び
の残率を求めた。Heat resistance - A duplex sample made by pulling out a conductor from an electric wire is
After being left in a constant temperature room at 0°C for 24 hours and in an aging tester at 150°C for 96 hours, it was measured using a Schopper type tensile tester at a tensile rate of 500 M/min to determine the tensile strength and elongation remaining. Ta.
夫々７５％、７０％以上保持していなければならない。Must maintain at least 75% and 70%, respectively.
表から明らかなように実施例１〜４は、いずれも難燃性
に優れ、耐熱性も十分な値を保持している。As is clear from the table, Examples 1 to 4 all have excellent flame retardancy and maintain sufficient heat resistance.
これに対し、ＥＭＭＡ単独の比較例１では耐熱性は優れ
ているものの、難燃性が十分でなく、逆にＥＭＭＡのブ
レンド量が少ない比較例２及び塩素化ポリエチレン単独
の比較例３では難燃性は非常に優れているが、耐熱性が
不十分である。On the other hand, although Comparative Example 1, which uses EMMA alone, has excellent heat resistance, it does not have sufficient flame retardancy.On the other hand, Comparative Example 2, which has a small amount of EMMA blended, and Comparative Example 3, which uses chlorinated polyethylene alone, have excellent flame retardancy. It has very good properties, but its heat resistance is insufficient.
［発明の効果］
以上説明したように本発明によれば、電気絶縁性や耐熱
性等の本来の特性を損なうことなく、難燃性を付与させ
た電気絶縁組成物を提供できる。[Effects of the Invention] As explained above, according to the present invention, it is possible to provide an electrically insulating composition that is imparted with flame retardancy without impairing its original properties such as electrical insulation and heat resistance.
Claims (2)
とハロゲン含有ポリマー１０〜 ８０重量％とからなることを特徴とする難燃性電気絶縁
組成物。1. Ethylene methyl methacrylate 90-20% by weight
and 10 to 80% by weight of a halogen-containing polymer.
請求項１記載の難燃性電気絶縁組成物。2. The flame-retardant electrical insulation composition according to claim 1, wherein the halogen-containing polymer is chlorinated polyethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284731A JP2606334B2 (en) | 1988-11-10 | 1988-11-10 | Flame retardant wires and cables |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63284731A JP2606334B2 (en) | 1988-11-10 | 1988-11-10 | Flame retardant wires and cables |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02129807A true JPH02129807A (en) | 1990-05-17 |
| JP2606334B2 JP2606334B2 (en) | 1997-04-30 |
Family
ID=17682252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63284731A Expired - Lifetime JP2606334B2 (en) | 1988-11-10 | 1988-11-10 | Flame retardant wires and cables |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2606334B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181058A (en) * | 2018-08-03 | 2019-01-11 | 晶锋集团股份有限公司 | A kind of fire-resistant cable material |
| WO2020225867A1 (en) * | 2019-05-08 | 2020-11-12 | 住友電気工業株式会社 | Hollow extrusion molded body, crosslinked body of same, heat shrinkable tube and multilayer heat shrinkable tube |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136184A (en) * | 1975-05-20 | 1976-11-25 | Hitachi Cable Ltd | Wire and cable |
-
1988
- 1988-11-10 JP JP63284731A patent/JP2606334B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51136184A (en) * | 1975-05-20 | 1976-11-25 | Hitachi Cable Ltd | Wire and cable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109181058A (en) * | 2018-08-03 | 2019-01-11 | 晶锋集团股份有限公司 | A kind of fire-resistant cable material |
| WO2020225867A1 (en) * | 2019-05-08 | 2020-11-12 | 住友電気工業株式会社 | Hollow extrusion molded body, crosslinked body of same, heat shrinkable tube and multilayer heat shrinkable tube |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2606334B2 (en) | 1997-04-30 |
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